<template>
  <div>
    <h2>{{ str }}</h2>
    <input type="text" v-model="str" />
  </div>
</template>

<script>
export default {
  data() {
    return {
      str: "吱吱是臭宝",
    };
  },
};
</script>

<style>
h2 {
  color: skyblue;
}
</style>